So below is our soon to be new tow vehicle. I am assuming the sound system is somewhat weak, and wanna add to it. Figured you guys would be able to help out. I don't want to blow the top off, but would like to get the party started, and keep it going. We probably have a budget of about $1,000+/-. That's not much, but that's about all we can do right now (after the purchase). We have an Onkyo 6.1 surround sound system in the house, which is pretty darn good. I was thinking of getting another one of those. Any thoughts?

Below is a picture showing the dinette table. I was thinking I could stick a 12" under the bench seat. FYI - I know nothing about speakers, amps, crossovers, etc. Thanks for any help.